The Bay Bridge reopened just after 9 a.m. today, six days after a repair job on a cracked structural beam on the eastern span fell apart and plunged onto the upper deck. Tests conducted overnight and this morning on an altered version of that repair job showed that the fix was holding, Caltrans spokesman Bart Ney said. At 9:01 a.m., a fleet of five California Highway Patrol cars escorted the first private vehicles allowed onto the westbound upper deck since the span was shut down Tuesday evening. About 10 minutes later, the lower deck reopened for traffic heading to the...